To improve is to change, so to be perfect is to have changed often.
After your death you will be what you were before your birth.
I died as a mineral and became a plant, I died as plant and rose to animal, I died as animal and I was Man. Why should I fear? When was I less by dying?
No man ever steps into the same river twice, for it's not the same river and he's not the same man.
For life is hemmed with death.
For I am not Eternity, but a human being—a part of the whole, as an hour is part of the day. I must come like the hour, and like the hour must pass!